* fix(excalidraw-diagram-generator): force UTF-8 stdout in add-arrow / add-icon so the success print doesn't crash on Windows cp1252
* fix(excalidraw-diagram-generator): force UTF-8 stdout in add-arrow / add-icon so the success print doesn't crash on Windows cp1252
- Improved error messages within the `find_library_file` function to include directory names
- Organized comments within the `sanitize_filename` function
- Improved error messages within the `split_library` function to include directory names